The response sent by the ResourceManager to a
ApplicationMaster on it's completion.

The response, includes:

A flag which indicates that the application has successfully unregistered
with the RM and the application can safely stop.

Note: The flag indicates whether the application has successfully
unregistered and is safe to stop. The application may stop after the flag is
true. If the application stops before the flag is true then the RM may retry
the application .